285644131293 has 8 divisors (see below), whose sum is σ = 400904044000. Its totient is φ = 180406819728.

The previous prime is 285644131273. The next prime is 285644131319. The reversal of 285644131293 is 392131446582.

285644131293 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285644131293 - 2⁵ = 285644131261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285644131243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2505650218 + ... + 2505650331.

It is an arithmetic number, because the mean of its divisors is an integer number (50113005500).

Almost surely, 2^285644131293 is an apocalyptic number.

It is an amenable number.

285644131293 is a deficient number, since it is larger than the sum of its proper divisors (115259912707).

285644131293 is a wasteful number, since it uses less digits than its factorization.

285644131293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011300571.

The product of its digits is 1244160, while the sum is 48.

The spelling of 285644131293 in words is "two hundred eighty-five billion, six hundred forty-four million, one hundred thirty-one thousand, two hundred ninety-three".